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" Toazz whom amg/.canadia- `drawings, making tion, in Whioh--wl t i.

i .d MACHINE, non "rnANINrit METAL,

`:speciegatitabr Letters rarement. iafrezfdateeznpir24,` i855; i

Beit known that-I,` JAMES THoMrsoN,` l `ofQFatersong;inthecounty `of Passaic and State` of `ewf Jersey, have invented a new .andl Improved Machine for Planing Sc`rew-` d Nuts andars ofAnyPrismatic Form; and.l "I do hereby declarethatfthefollowing is a full, clear, and] exact "description of` the same,"` referencebeing "hadto the annexed a; partgof this specicaproved machine. Fig.` 21, isa vertical sec-A .d tio-ndof' do, (00)@` A21,showing the plane oflsection` Fig. 3,1 is a` plan or top` l viewofdb. Fig. 4t,isapla-nior` top view `of d acl`utch by `which i a cranklor driving pulley mislfattached to anddetached[from` the vdriving shaft. Fig;` 5, is@` transverse section of .a `1 portion of the horizontal` cutter disk.` and l` intermittingly rotatingfmandril `on which thehnutsor bartobe-plaedlisplaced, (y) i (y) Fig. 3, shows the planejof section. 1

1 Similar letters, of lreference indicate cor? `responding parts in theseveral figures.

` SThisinvention relatestol a new. `and im` l`provedmachine for planing prisrnatic bars, y screwnuts, etc.7 andwcnsists, 1st, in attach-` ing a. series of cutters to the periphery of a rotating disk, said cutters being so arranged pass over a `slirface y equal inpwidth to one side `ofthenut` or bartmbeplaned. In con-` nectionpwith:` the `disk1orff`cutters thus at-` Q tached there` isusedfan intermittingly `mov-V ing mandril which d at every revolution E. of the disk` turns a certain requiredfdistance and Hpresents yanunplaned` side kof anut or bar to the action of" the cuttersaswillbe hereaftershown andfdescribed.

. 2nd. VMy invention consists i in the peculiar gmeans employed for p operating the mandril abovereferredto, and also in the means employed `for throwing.` the driving pulley in and out of gearwiththe machine."

" 1 To enable others skilled'in the art to make and use my invention, Iwill. proceed to describe its construction and` operation. t d A,1Figs. l, 2 and 3 represents a rectangu-y 5 lar frame` constructed infany proper manto support the parts of the machine.`

`ywwwSmegmay @FME 1 t `a verticalshaftithe lower end of i whichls stepped in across piece (a) at the u lower part" of the frame A. Theupper end'` `of the shaftB hasitsbearing in a cross "piece (b) attached to theupper part of the frame A To theuuppger part oftheshaftfBthereis Y attacheda disk C, Vto the `periphery of `which a series ofvertical cutters (c). are at-` tached. Thedisk C lis" not perfectly circular see Fig. 3but varies a trifle therefrom so astobe of scroll form and thereby allow eachfcutter to` be a little farther from the shaft B than the one immediately behind it. The cutting edges ofthe whole number of` "cutters therefore will, duringl` one revolution issecured a set screw (d), see Fig. l, a` `platform or table D, on` which a horizontal `mandril E `works in suitable bearings '(6) .(6) see` Figs. 1 and 3. `To one end ofthis mandrilthere is attached a ratchet F, and a loose drum. G is also placed on the mandril and connected to the ratchet when it is` turned in a direction toward the disk by a spring pawlin the usual manner. To the `drum Gr thereis attached` a cord (f) which passes `over apulley (hg) attached to `the frame A, said cord' having a; Weight `attached to-.its`end', see Fig. 5.

H is a lever attached to one side of the platform or table D. To the upper edge of this leverl a pin (71X)` isattached said pin.

`catching in the teeth `of thev ratchet F Ain consequence `ofa spring (i), see Figs. Al

and 5.'

` `Theupper end of the lever I-I'passes up` underneath the disk C, and is acted upon at every revolution of the disk by a projection attached thereto as will be hereafter described.

To theunder surface of the disk C there is attached `a toothed wheel I into which a pinionJ gears, said pinion being on the upper part of a vertical shaft K, which works in suitable bearings attached to the frame A. Just below the pinion J and on the same shaft there is a bevel toothed wh eel L which gears into a bevel pinion! M at the inner end of ahorizontal shaft N, at the opposite end of this shaft there is a loose driving pulley or crank O.

P, see Fig. 2 represents a series o-f radial arms which are connected at their center or point of junction by a pin to a cross bar Q of the frame A. To one of the arms P there is attached a pin (7c) see Figs. 2 and 3. Directly over the cross bar Q there is a sliding bar It to which one end of a spiral spring S is attached, the opposite end of this spring is attached to an arm T of the frame A. To the outer end of the sliding bar R there is attached a clutch U and to one side of the bar R there is attached a lever V having a notch (Z) cut in it, which notch fits over a pin (m) on the bar R and keeps the clutch U connected-to the loose driving pulley O and consequently connects the driving pulley with the shaft N. W is an arm attached to the shaft B, see Figs. 2 and 4.

Operation: Suppose, for instance, that nuts of hexagonal form are to be planed. The nuts are placed upon the mandril E, as shown in Figs. 1 and 8, (o) representing the nuts, which may be considered as a hexagonal bar. The platform or table I) is then adjusted the proper height by operating the set screw (d) and motion is given the shaft N in consequence of power being applied to the pulley or crank O. The disk C is made to rotate by means of the gearing I, J, L, M, and as the cutters (o) project gradually farther from the center of the disk C in consequence of its scroll form, the cutters will plane off one side of the nuts (o) at one revolution of the disk, the sides of the nuts being equal in width to the space or diierence between the longer and shorter diameter of the disk. When the disk has made one revolution, the projection (j) strikes against the upper end of the lever H and depresses it and throws the pin (L) on said lever out of the ratchet, and the weight (it) rotates the drum G, and consequently the mandril E and nuts (o), the space or distance of one tooth of the ratchet and a new side of the nuts is presented to the action of the cutters. The above operation is repeated until all the sides of the nuts are planed. As the shaft B rotates, the arm W, strikes against one of the radial arms P and moves the arms a certain distance at every revolution of the shaft. When the arm to which the pin (7c) is attached is moved, said pin throws the lever V upward and the notch (l) is raised from the pin (m) on the sliding bar R and the spring S consequently operates the bar R and disconnects the clutch V from the pulley or crank O.

The number of arms P of course corresponds to the number of sides of the nuts, if square nuts or bars are planed, four arms P, will be required.

By the above invention it will be seen that no feed motion is required because the cutters (e) during one revolution of the disk, move over the whole surface of the sides of the nuts or bar to be planed, and consequently the machine is rendered eX- tremely simple. It works rapidly and requires but litt-le attention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is-

l. Planing the sides of nuts or prismatic bars, by means of a series of cutters attached to the periphery of a disk C of scroll form so that each cutter will project a trifle farther from the center or shaft B of said disk and thereby allow the whole number of cutters to pass over and plane the whole surface of each side of the nuts or bar at one revolution of the disk, as herein shown and described.

2. I claim the employment or use of the disk C with cutters (c) attached to its periphery as herein shown, in combination with the intermittingly rotating mandril E for the purpose as set forth.

3. I claim rot-ating the mandril E intermittingly by means of the lever H, projection attached to the disk C, and the ratchet E and drum G operated by a weight (7L) or its equivalent.

4. I claim operating' the clutch U by means of the radial arms P, lever V and spring S attached to the sliding bar R, the arms P being acted upon by the arm W on the shaft B as herein shown and descsribed.

JAMES H. THOMPSON.

Witnesses:

WILLIAM TUscH, I. W. Cooivnss. 

